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The Leiden ranking 2011/2012: Data collection, indicators, and interpretation
The Leiden Ranking is compared with other global university rankings, in particular the Academic Ranking of World Universities (commonly known as the Shanghai Ranking) and the Times Higher Education World University Rankings, and the comparison focuses on the methodological choices underlying the different rankings.
Towards a new crown indicator: Some theoretical considerations
The application of bibliometric analyses in the evaluation of social science research. Who benefits from it, and why it is still feasible
- T. V. Leeuwen
- Computer ScienceScientometrics
- 14 January 2006
This study attempts to clarify some of the topics mentioned against the application of the SSCI for evaluation purposes, like the existing publication and citation culture within the social sciences, the effect of variable citation windows, and the (geographical) origin of citation flows.
Rivals for the crown: Reply to Opthof and Leydesdorff
New bibliometric tools for the assessment of national research performance: Database description, overview of indicators and first applications
The paper describes various types of information added to the database: data on articles citing the Dutch publications; detailed citation data on ISI journals and subfields; and a classification system of publishing main organizations, appearing in the addresses.
The Holy Grail of science policy: Exploring and combining bibliometric tools in search of scientific excellence
This study presents a comparative analysis of a number of standard and new indicators of research performance or 'scientific excellence', using techniques applied in studies conducted by CWTS in recent years.
A bibliometric classificatory approach for the study and assessment of research performance at the individual level: The effects of age on productivity and impact
The classificatory approach proposed herein may prove a useful tool in support of research assessment at the individual level and for exploring potential determinants of research success.
Towards a new crown indicator: an empirical analysis
An empirical comparison between two normalization mechanisms for citation-based indicators of research performance aims to normalize citation counts for the field and the year in which a publication was published finds that at high aggregation levels, such as at the level of large research institutions or at thelevel of countries, the differences between the two mechanisms are very small.
Some modifications to the SNIP journal impact indicator
Language biases in the coverage of the Science Citation Index and its consequencesfor international comparisons of national research performance
The authors conclude that the value of impact indicators of research activities at the level of an institution or a country strongly depend upon whether one includes research publications in SCI covered journals written in other languages than in English.